Patents by Inventor Nicolas Sirvin

Nicolas Sirvin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11326515
    Abstract: The invention relates to an arrangement, in a pod of an aircraft propulsion assembly, for drawing in air and trapping foreign bodies. Said arrangement includes a main air inlet duct (11) separating into, on one hand, a channel (13) for leading air to a compressor and, on the other hand, a bypass channel (12) capable of trapping foreign bodies (5) that enter said main duct (11). Said arrangement comprises a heat exchanger (6) that extends along a section of the bypass channel (12). Said heat exchanger (6) carries out surface heat exchange along said section and is coupled with an external oil system in order to cool the oil thereof by heat exchange with the air (4) flowing in the bypass channel (12). Said bypass channel (12) has an air outlet (12a) acting as a means for discharging the foreign bodies (5).
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: May 10, 2022
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Guillaume Pouyau, Alexandre Couilleaux, Nicolas Sirvin
  • Patent number: 10167814
    Abstract: A turbine engine nozzle having confluent streams, the nozzle including a core cowl arranged around an annular central body and co-operating therewith to define a core annular channel for passing a flow of a core stream, the core stream on entry into the nozzle possessing an azimuth component driving residual gyratory movement of the core stream in two opposite gyratory flow directions corresponding to two operating speeds of the engine, the core cowl having an annular upstream portion that is extended downstream by an annular terminal portion having longitudinal cuts forming a plurality of flaps that overlap radially in pairs via their respective side edges in such a manner that, for each flap, one of the two side edges of the flap is positioned internally relative to the corresponding side edge of one of the adjacent flaps, while the other side edge of the flap is positioned externally relative to the corresponding side edge of the other adjacent flap.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: January 1, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Romain Ferrier, Alexandre Couilleaux, Jackie Raymond Julien Prouteau, Nicolas Sirvin
  • Publication number: 20170335766
    Abstract: The invention relates to an arrangement, in a pod of an aircraft propulsion assembly, for drawing in air and trapping foreign bodies. Said arrangement includes a main air inlet duct (11) separating into, on one hand, a channel (13) for leading air to a compressor and, on the other hand, a bypass channel (12) capable of trapping foreign bodies (5) that enter said main duct (11). Said arrangement comprises a heat exchanger (6) that extends along a section of the bypass channel (12). Said heat exchanger (6) carries out surface heat exchange along said section and is coupled with an external oil system in order to cool the oil thereof by heat exchange with the air (4) flowing in the bypass channel (12). Said bypass channel (12) has an air outlet (12a) acting as a means for discharging the foreign bodies (5).
    Type: Application
    Filed: November 26, 2015
    Publication date: November 23, 2017
    Inventors: Guillaume POUYAU, Alexandre COUILLEAUX, Nicolas SIRVIN
  • Patent number: 9816461
    Abstract: An exhaust centerbody for a turbine engine is provided. The centerbody includes a truncated downstream part, which is connected to an upstream part by an annular ridge marking a discontinuity between the outer surfaces of the upstream and downstream parts. The outer surface of the downstream part has a substantially conical general shape, of which the tip is oriented downstream and is positioned in the region of the axis A, the axial half-section of this outer surface defining a line of which the upstream end part is substantially tangential to a straight line passing through the ridge and forming a non-zero angle ? with a tangent to the outer surface of the upstream part, in the region of the ridge, and of which the downstream end part is substantially tangential to a straight line passing through the tip and forming a non-zero angle ? with the axis A.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: November 14, 2017
    Assignee: SNECMA
    Inventors: Guillaume Pouyau, Nicolas Sirvin
  • Patent number: 9709002
    Abstract: A method of mixing in a discharge conduit, in a turbine engine with two or more flows, of a primary flow and a secondary flow, the two flows emerging in the discharge conduit by two coaxial ducts, separated by an internal housing which has an end downstream relative to the flow direction of the flows, the two coaxial ducts each being defined between an internal wall and an external wall, upstream of the downstream end of the internal housing, and the secondary flow surrounding the primary flow, is provided. The method includes disposing a divergent radial deflection device in the primary duct, spaced apart from the walls of the primary duct. A turbine engine including the deflection device is also provided.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: July 18, 2017
    Assignee: SNECMA
    Inventors: Guillaume Pouyau, Nicolas Sirvin
  • Publication number: 20160237949
    Abstract: A turbine engine nozzle having confluent streams, the nozzle including a core cowl arranged around an annular central body and co-operating therewith to define a core annular channel for passing a flow of a core stream, the core stream on entry into the nozzle possessing an azimuth component driving residual gyratory movement of the core stream in two opposite gyratory flow directions corresponding to two operating speeds of the engine, the core cowl having an annular upstream portion that is extended downstream by an annular terminal portion having longitudinal cuts forming a plurality of flaps that overlap radially in pairs via their respective side edges in such a manner that, for each flap, one of the two side edges of the flap is positioned internally relative to the corresponding side edge of one of the adjacent flaps, while the other side edge of the flap is positioned externally relative to the corresponding side edge of the other adjacent flap.
    Type: Application
    Filed: September 16, 2014
    Publication date: August 18, 2016
    Applicant: SNECMA
    Inventors: Romain FERRIER, Alexandre COUILLEAUX, Jackie Raymond Julien PROUTEAU, Nicolas SIRVIN
  • Publication number: 20150101338
    Abstract: Exhaust centerbody (12?) for a turbine engine, comprising a truncated downstream part (26), which is connected to an upstream part (24) by an annular ridge (22) marking a discontinuity between the outer surfaces of the upstream and downstream parts, the outer surface of the downstream part having a substantially conical general shape, of which the tip (29) is oriented downstream and is positioned in the region of the axis A, the axial half-section of this outer surface defining a line of which the upstream end part is substantially tangential to a straight line (28) passing through the above-mentioned ridge and forming a non-zero angle ? with a tangent (30) to the outer surface of the upstream part, in the region of the ridge, and of which the downstream end part is substantially tangential to a straight line (32) passing through the above-mentioned tip and forming a non-zero angle ? with the axis A.
    Type: Application
    Filed: July 24, 2014
    Publication date: April 16, 2015
    Applicant: SNECMA
    Inventors: Guillaume POUYAU, Nicolas Sirvin
  • Publication number: 20140374566
    Abstract: A pylon configured to secure a turbine engine to a structural element of an aircraft, the pylon including a streamlined profile defined by two opposite faces and extending longitudinally between a leading edge and a trailing edge, and at least a first one of the two faces presenting at least locally a succession of non-through hollows and of bumps.
    Type: Application
    Filed: December 12, 2012
    Publication date: December 25, 2014
    Applicant: SNECMA
    Inventors: Rasika Fernando, Nicolas Mehier, Fabien Monti, Nicolas Sirvin
  • Publication number: 20140234074
    Abstract: The invention relates to a method of mixing in a discharge conduit, in a turbine engine with two or more flows, of a primary flow and a secondary flow, the two flows emerging in said discharge conduit by two coaxial ducts, separated by an internal housing which has an end downstream relative to the flow direction of the flows, the two coaxial ducts each being defined between an internal wall and an external wall, upstream of the downstream end of the internal housing, and the secondary flow surrounding the primary flow, characterised in that it consists of disposing at least one divergent radial deflection means in primary duct, spaced apart from the walls of said primary duct.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 21, 2014
    Applicant: SNECMA
    Inventors: Guillaume Pouyau, Nicolas Sirvin